CN100533645C - Supporting structure, method of manufacturing supporting structure, and display apparatus using the same - Google Patents

Supporting structure, method of manufacturing supporting structure, and display apparatus using the same Download PDF

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Publication number
CN100533645C
CN100533645C CNB2005100895845A CN200510089584A CN100533645C CN 100533645 C CN100533645 C CN 100533645C CN B2005100895845 A CNB2005100895845 A CN B2005100895845A CN 200510089584 A CN200510089584 A CN 200510089584A CN 100533645 C CN100533645 C CN 100533645C
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China
Prior art keywords
supporting construction
substrate
glass substrate
laser
grooves
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Expired - Fee Related
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CNB2005100895845A
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CN1747115A (en
Inventor
松尾雄二
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Canon Inc
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Canon Inc
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/02Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
    • H01J29/028Mounting or supporting arrangements for flat panel cathode ray tubes, e.g. spacers particularly relating to electrodes
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/86Vessels; Containers; Vacuum locks
    • H01J29/864Spacers between faceplate and backplate of flat panel cathode ray tubes
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/02Manufacture of electrodes or electrode systems
    • H01J9/18Assembling together the component parts of electrode systems
    • H01J9/185Assembling together the component parts of electrode systems of flat panel display devices, e.g. by using spacers
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/24Manufacture or joining of vessels, leading-in conductors or bases
    • H01J9/241Manufacture or joining of vessels, leading-in conductors or bases the vessel being for a flat panel display
    • H01J9/242Spacers between faceplate and backplate
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2329/00Electron emission display panels, e.g. field emission display panels
    • H01J2329/86Vessels
    • H01J2329/8625Spacing members
    • H01J2329/863Spacing members characterised by the form or structure
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2329/00Electron emission display panels, e.g. field emission display panels
    • H01J2329/86Vessels
    • H01J2329/8625Spacing members
    • H01J2329/8665Spacer holding means

Abstract

The present invention provides a support structure and a manufacturing method thereof, as well as a display device using the support structure. The present invention can use a simple method to provide the support structure which is excellent in damage-resistant strength and is provided with a plurality of grooves for preventing static on the surface. Laser is radiated on a glass mother plate with a plurality of grooves on the surface along the direction parallel to the grooves to heat and stretch the glass mother plate, obtaining a glass substrate; in the state that the irradiated area is melted down, with the irradiated area as a center, the grooves on the cut section of the fixed side of the glass substrate do not reach end parts by drawing one side of the glass substrate, so as to form a nice R shape.

Description

Supporting construction and manufacture method thereof and the display unit of using it
Technical field
The present invention relates in the flat display that constitutes with electronic emission element, supporting construction and manufacture method thereof as the anti-atmospheric pressure means of vacuum tank are used also relate to the display unit that constitutes with this supporting construction.
Background technology
In general, will have a plurality of electronic emission elements as in first substrate of electron source base board and the display unit as the spaced apart relative configuration of second substrate of display surface, in order to obtain necessary anti-atmospheric pressure performance, will be clipped between first substrate and second substrate with the supporting construction (spacer) that insulating material constitutes.
As the manufacture method of this supporting construction, known a kind of heating glass mother metal makes its extension, with diamond cutter or by laser radiation, it is cut into the method (Japanese Patent Application Laid-Open 2000-251705 communique) of the length of regulation.In addition, also know, can prevent that supporting construction is charged by on the surface of supporting construction, forming a plurality of grooves.Like this, as the manufacture method of the supporting construction that a plurality of grooves are arranged on the surface, known a kind of heating glass mother metal makes its extension, with diamond cutter or by laser radiation, it is cut into the method (spy opens the 2003-229056 communique) of the length of regulation.Stress concentrates on and cuts off in the operation on microspike that produces on the section or gap, has supporting construction generation tailure in buckling, perhaps, because electric field concentrates on this projection or the gap, the problem of surface discharge takes place easily.
Therefore open in the 2000-251705 communique the spy, also disclose by the supporting construction after cutting off being implemented heat treated or chemical etching processing, carry out the smoothing of section and handle, seek to prevent the tailure in buckling of this supporting structure and the manufacture method of surface discharge.
; by forming groove from the teeth outwards; under the situation of the supporting construction of manufacturing energy antistatic; adopt the spy to open disclosed manufacture method in the 2000-251705 communique; because annealing or chemical etching; the shape of groove (shape of the degree of depth, angle, rib portion) changes, and can not seek desirable antistatic.
The invention reside in and address the above problem, additional numerous and diverse operation just can provide on a kind of height of anti-breakdown strength the and the surface supporting construction that has desirable groove, seeks antistatic, with the high display unit of this supporting construction formation reliability.
Summary of the invention
A first aspect of the present invention, it is a kind of supporting construction, on the surface of tabular basis material, a plurality of grooves with respect to the parallel longitudinal of this basis material are arranged, the component parts of display unit in this basis material and end this parallel longitudinal upper support, it is characterized in that: the horizontal parallel end with above-mentioned basis material is left in the end of above-mentioned groove.
A second aspect of the present invention, it is a kind of supporting construction, on the surface of tabular basis material, a plurality of grooves with respect to the parallel longitudinal of this basis material are arranged, the component parts of display unit with the end upper support of this parallel longitudinal of this basis material, it is characterized in that: with the horizontal parallel end of basis material on, the radius of curvature sweep bigger than the thickness of this basis material arranged.
A third aspect of the present invention is the manufacture method that the tabular supporting construction of many grooves is arranged on a kind of surface, it is characterized in that comprising:
The tabular base glass material that many grooves are arranged on the surface is heated the operation that it is extended along the direction that is parallel to this groove; And
Along with the direction of the groove quadrature of this glass basis material, the glass basis material irradiating laser to after extending cuts off the operation of this glass basis material, and
Cut off the operation of this glass basis material, be in the irradiated region fusion of this laser that makes this glass basis material state under, this irradiated region as the border, by drawing an end of this glass basis material, is cut off this glass basis material at this irradiated region.
A fourth aspect of the present invention is a kind of display unit, it is characterized in that: have: first substrate with electronic emission element; Have by irradiation from above-mentioned electronic emission element electrons emitted and luminous luminous component and second substrate of electrode; And between above-mentioned first substrate and second substrate, support two substrates, and the tabular supporting construction that has a plurality of grooves parallel with above-mentioned first substrate or second substrate on the surface, the end of above-mentioned groove are left the end of not facing above-mentioned first substrate or second substrate of above-mentioned supporting construction.
A fifth aspect of the present invention is a kind of display unit, and it has: first substrate that electronic emission element is arranged; Have by irradiation from above-mentioned electronic emission element electrons emitted and luminous luminous component and second substrate of electrode; And between above-mentioned first substrate and second substrate, support two substrates, the tabular supporting construction that a plurality of grooves parallel with respect to above-mentioned first substrate or second substrate are arranged on the surface, this display unit is characterised in that: on the not end in the face of above-mentioned first substrate or second substrate of above-mentioned supporting construction, the radius of curvature sweep bigger than the thickness of this supporting construction arranged.
Description of drawings
Figure 1A and 1B are the figure of the preferred implementation of expression supporting structure of the present invention.
Fig. 2 A and 2B are the figure of another execution mode of expression supporting structure of the present invention.
Fig. 3 A and 3B are one of the existing supporting structure of expression illustrations.
Fig. 4 A and 4B are the figure of another preferred implementation of expression supporting structure of the present invention.
Fig. 5 A and 5B are the figure of the illumination pattern of the laser in the expression manufacture method of the present invention.
Fig. 6 is the figure of the cut-out operation in the expression manufacture method of the present invention.
Fig. 7 is the figure of the cut-out portion of the glass substrate after the cut-out of representing in the manufacture method of the present invention.
Fig. 8 is the figure of structure of the display floater of expression display unit of the present invention.
Fig. 9 is the partial enlarged drawing of supporting construction (spacer).
Embodiment
Below, enumerate preferred implementation and supporting construction of the present invention is described, uses the display unit of this supporting construction and the manufacture method of this supporting construction.
Fig. 8 is the oblique view of structure of display floater of the preferred implementation of expression display unit of the present invention, is the figure that illustrates after expression cuts a part of structure.
As shown in Figure 8, this routine display floater makes that to separate certain intervals as the backplate 81 of first substrate and front plate 82 as second substrate relative, flat supporting construction (the following spacer that is also referred to as sometimes) 83 is sandwiched between the two, with around sidewall 84 sealings, make inside be vacuum atmosphere simultaneously.
The electron source base board 89 that has formed line direction wiring 85, column direction wiring 86, interlayer insulating film (not shown) and electronic emission element 88 is fixed on the backplate 81.
Illustrated electronic emission element 88 is the surface conductive type electronic emission elements that connecting the conductive membrane that electron emission part is arranged between a pair of element electrode.This example is to have disposed the electronic emission element 88 of N * M this surface conductive type, have and be the rectangular example that has disposed respectively with the multiple electron beam source of the M bar line direction wiring 85 that uniformly-spaced forms and N bar column direction wiring 86.In addition, in this example, line direction wiring 85 is positioned in the column direction wiring 86 across the interlayer insulating film (not shown).And sweep signal is added in the line direction wiring 85 by leading-out terminal Dx1~Dxm, and modulation signal (picture signal) is added in the column direction wiring 86 by leading-out terminal Dy1~Dyn.
On the lower surface (with backplate 81 opposed faces) of front plate 82, form fluorescent film 90 as luminous component, in addition, be arranged on the surface of this fluorescent film 90 as the metal backing (accelerating electrode) 91 of electroconductive component.This metal backing 91 makes from electronic emission element 88 electrons emitted and quickens usefulness, and Hv applies high voltage from HV Terminal, is defined as than the above line direction 85 high current potentials that connect up.
Being flat spacer 83 is installed in the line direction wiring 85 abreast with line direction wiring 85.The spacer fixed block 92 of this spacer 83 is installed in two ends, to be stated from the state in the line direction wiring 85, is fixed on the electron source base board 89.Because with spacer fixed block 92 stationary partition 83,, can reduce near the interference of the electric field the electronic emission element 88 that electron orbit is subjected to electric field effects easily so the kinetic energy of electronics is little.
In addition, only show spacer among Fig. 8 among Fig. 9.In Fig. 9, the 100th, the end of facing with front plate or backplate of spacer, the 101st, the end of not facing with front plate or backplate of spacer.In other words, the 100th, spacer and end parallel longitudinal, the 101st, spacer with horizontal parallel end.In addition, the 102nd, vertical (directions X among Fig. 8) of spacer, the 103rd, horizontal (the Z direction among Fig. 8) of spacer.
Spacer 83 be sandwiched in backplate 81 with electron source base board 89 and be provided with fluorescent film 90 and the front plate 82 of metal backing 91 between, top and bottom are bonded respectively in metal backing 91 and line direction wiring 85.In order to make display floater have anti-atmospheric pressure performance, usually, a plurality of spacers 83 are set equally spaced.In addition, sidewall 84 is sandwiched in the edge part of backplate 81 and front plate 82, and the junction surface of the junction surface of backplate 81 and sidewall 84 and front plate 82 and sidewall 84 is used frit-sealed respectively.
Among Figure 1A and the 1B, show first supporting construction of the present invention, be the preferred implementation of the spacer 3 among Fig. 8.Figure 1A is end view (in Fig. 8, being the figure of the spacer seen from the Y direction, the X-Z plane graph), 1B be vertical view (in Fig. 8, be the figure of the spacer seen from the Z direction, X-Y plane figure.In addition, this figure represent with the front plate 82 of spacer in the face of and the end face that contacts).In addition, the described Fig. 2 A in back, 2B, 3A, 3B, 4A, 4B, 5A and 5B also are the figure from seeing with the same direction of Figure 1A and 1B.
Shown in Figure 1A and 1B, supporting construction of the present invention is tabular, and many grooves 1 that are parallel to first and second substrate are arranged from the teeth outwards, and it is feature of the present invention that this groove 1 does not arrive the end.In other words, the end of not facing backplate or front plate of supporting construction is left in the end of groove 1.Like this, because groove 1 does not arrive the end, so aspect anti-breakdown strength, can guarantee full intensity.The length (t) that does not have a zone of groove 1 preferably and the thickness (T) of supporting structure be equal to or bigger.Its reason is because if adopt the described manufacture method of the present invention in back, then in the cut-out operation of the glass substrate that extends, does not have the length (t) in the zone of groove 1 and perpendicular to the shape of the end of substrate dependency relation is arranged.
Shown in Figure 1B, the shape of end is preferably in the interior R shape (R that relaxes that forms of scope of thickness (T) T1).At this moment, if R at least T1Be protruding R shape in the outside, when the what is called during then with this routine supporting construction assembling display floater was handled (handling), when this end was contacted with miscellaneous part, the damaged possibility in this end was very little.
On the other hand, along with the difference of the condition of cutting off operation, shown in Fig. 2 A and 2B, the length (t) that does not have the zone of groove 1 in the case, forms the R shape (R of depression sometimes less than the thickness (T) of supporting construction towards the outside on the end T2).Under the situation of such shape, aspect the anti-breakdown strength because groove 1 does not arrive the end, so no problem, but be necessary to note the use of supporting construction.This is because the end has the shape of back-flexing, and is promptly pointed, so when handling when assembling display floater with such supporting construction, this end might be damaged when this end contacted with miscellaneous part, should be noted that during processing.
In addition, go up the R shape (R among Figure 1A and the 1B that exists about height (H) direction (the Z direction among Fig. 8) H1, the R among Fig. 2 A and the 2B H2), preferably be the curved shape of mitigation as much as possible.If to the R among Figure 1A and the 1B H1With the R among Fig. 2 A and the 2B H2Compare, then shown in Fig. 2 A and 2B, end shape is back-flexing (R T2) time R H2Significantly than the R among Figure 1A and the 1B H1Curvature little, pointed.That is, the end among Fig. 2 A and the 2B is the shape that gap takes place when handling easily.
The substrate that Fig. 3 A and 3B have been to use the diamond cutter of using in the existing for example glass scriber etc. to cut off to extend and the supporting construction made.Like this, very sharp keen with the shape of laterally parallel end (cut-out portion), the crest line of groove 1 clearly arrives the crest line of section.In addition, in such supporting construction, on the crest line of section, there are many small crackles (gap or scar), become the main cause that stress is concentrated, be unfavorable for anti-breakdown strength.In addition, also become the reason that gap takes place during processing.
Among Fig. 4 A and the 4B, show the preferred implementation of second kind of supporting construction of the present invention.This example be with laterally parallel end on, by forming the radius of curvature bend (R bigger than the thickness (T) of supporting construction T4), this bend has the effect as the reinforcement of end, improves anti-breakdown strength.In the case of this example, have no relations, but under the situation that described manufacture method of the present invention is made with the back, in fact groove 1 does not arrive and horizontal parallel end even groove 1 arrives with laterally parallel end yet.In addition, for groove 1 is not arrived and horizontal parallel end,, then compare with the supporting construction shown in Figure 1A and the 1B if particularly there is not the length (t) in the zone of groove 1 bigger than the thickness (T) of supporting structure, further improved anti-breakdown strength, so be desirable.In addition, the R shape (R that has height (H) direction H4) also than the big tendency of supporting construction shown in Figure 1A and the 1B, fine like this.
In addition, under the situation in display unit shown in Figure 8 that supporting construction of the present invention is packed into, utilize spacer fixed block 92 fixedly not have the zone of groove, so that dispose to not influence of viewing area.
Secondly, the manufacture method of supporting construction of the present invention is described.Length according to the rules will be the base glass material that many parallel (identical with the groove quantity on the supporting construction) grooves are arranged on tabular, the surface and extend the glass substrate cut-out that obtains along being parallel to this groove direction heating, can obtain supporting construction of the present invention.In manufacture method of the present invention, be characterised in that: in above-mentioned cut-out operation, from glass substrate on the direction irradiating laser of groove quadrature, make the irradiated region fusion state under, the end by the traction glass substrate cuts off.That is, in manufacture method of the present invention, by the high laser of using up of directivity, glass substrate only makes the glass substrate fusion at irradiated region partly, and groove is buried, and irradiated region keeps the shape of groove with external enwergy and cuts off simultaneously.In addition, the condition during by adjusting illuminate condition or traction glass substrate can easily form the end shown in Figure 1A, 1B, Fig. 4 A and the 4B (with horizontal parallel end) shape.
The Wavelength of Laser of using among the present invention, as long as can absorb laser effectively as the glass substrate that cuts off object, then which scope can.For example can enumerate wavelength and be 10.6 microns CO 2(carbon dioxide) laser or wavelength are 1.06 microns YAG laser, and particularly glass is to CO 2So the absorptivity height of laser is CO 2Laser is good.
In addition, be necessary form (material, thickness, width) etc., select output power of laser and frequency according to glass substrate.If the power of laser is excessive, then the rising of the temperature of irradiated region is too fast, cracks in the cut-out portion, causes that glass substrate burns, evaporates, disperses etc., often causes periphery to pollute.For fear of the generation of such bad phenomenon, if reduce frequency of oscillation, then (interrupted) variations in temperature of the timeliness of irradiated region increases, and crackle takes place sometimes.Therefore, set laser frequency higher as far as possible, shine a moment, the variations in temperature of relaxation time property.In addition as hereinafter described, setting power in the scope that can cut off glass substrate.
As described herein, with laser radiation under the situation on the glass substrate that heating has been extended, for do not take place, fly upward or the state of the unwanted fused mass that disperses under cut off, be necessary with corresponding to the laser radiation as far as possible uniformly of height (H) direction corresponding to bearing of trend as far as possible on the narrow region.
Specifically, consider the point-like of laser focusing one-tenth from several microns to tens of microns carried out method for scanning along short transverse; Or by methods such as mask formation irradiated regions., in the previous case, by scanning with some light, the variations in temperature of the timeliness of cut-out portion is big, cracks on glass substrate mostly.In addition, for fear of this situation, though also can consider to improve sweep speed, in the mode that mirrors vibrate is scanned, sweep speed has the limit.In addition, under latter event, CO 2Or the YAG Wavelength of Laser is long, corresponding to the pattern precision of sheltering bad (obscurity boundary of figure), and the wearing and tearing severity of mask (mask material that can reflect or absorb laser effectively is few), so be the best approach hardly.
Best mode has been shown among Fig. 5 A and the 5B.Among the figure, the 11st, the glass substrate that has extended, the 12nd, the illumination pattern of laser.Shown in Fig. 5 A and 5B, by cylinder lenses laser itself is focused into elongated figure 12, shine like this: make the length direction (W) of illumination pattern 12 become height (H) direction of supporting structure.And by shining simultaneously from the two sides of glass substrate 11, energy efficiency is the thickness of highland glass substrate 11 (T) direction more.In the case, be necessary to make the position of illumination pattern 12 on two sides consistent fully.
Shown in Fig. 5 A and 5B, at irradiating laser, make under the state of irradiated region fusion of glass substrate 11, as shown in Figure 6, be center (boundary line) by illumination pattern 12 with laser, a side 13 is fixing, and traction opposite side 14 can obtain cut-out shape shown in Figure 7.Then, a fixing side is as product, discarded with a side 14 of having drawn.
After making glass substrate 11 fusions, traction is during opposite side 14, be preferably in fused mass along with the opposite side 14 of glass substrate move during continue irradiating laser.In the trailed process of fused mass, if stop irradiating laser, then the temperature of fused mass sharply descends (heat radiation), so can directly sclerosis under traction (wire drawing) state.Desirable shape can not be processed in the end of one side 13.Back-flexing shape shown in Fig. 2 A and the 2B shows situation about having cut off under state similar with it.
In addition, set the irradiation time of laser longer, improve melt temperature (As time goes on the fusion area is also expanded), the volume of fusing department increases.When therefore drawing opposite side 14, fused mass remains on the side 13, can obtain the big cut-out portion of diameter of the bend shown in Fig. 4 A and the 4B.
[embodiment 1
(embodiment 1)
Shown in Fig. 5 A and 5B, to extending the glass substrate (material: alkali-free glass that processing obtains by heating, (H): 1.6mm highly, thickness (T): 0.195mm, groove depth: 8 microns, groove number: 40, groove width: 15 microns, separation: 30 microns), carry out the laser radiation in 3 seconds from both sides, the laser radiation figure is length direction (W): 6mm, wide (L): 1.5mm.
Laser oscillator uses the CO of power output as 10W 2Laser (シ Application ラ ッ De company: model 48-1W).With optical beam expander with 2mm
Figure C200510089584D0011142751QIETU
Laser expand to 6mm
Figure C200510089584D0011142751QIETU
, on the two sides that is radiated at glass substrate, light path being divided into two-way with optical splitter, each light path is clipped in the middle glass substrate and disposes relatively.And by with focal length being the front that 2.5 inches cylinder lenses focuses on glass substrate, the illumination pattern of above-mentioned size is radiated on the two sides of glass substrate.
The laser output condition is: frequency is 5kHz, and power is 7.0W (duty cycle setting of pulse is 30%).In addition, the traction condition is: begin traction after irradiating laser began for 2.0 seconds, hauling speed is 7mm/sec.Hauling distance is 10mm.
According to such condition glass substrate is cut off, the result, cut-out portion is the shape shown in Figure 1A and the 1B, does not have the length (t) in the zone of groove to be 0.2mm, R T1Be the R shape of the slyness of projection laterally.
About the supporting construction of cutting off the back acquisition in this example and the supporting construction that obtains with existing method, carried out 32 bend tests respectively, and carried out the checking of anti-breakdown strength.It is the results are shown in the table 1." section ( ィ サ-) " in the table is by cutting off the existing mode of glass or silicon wafer etc. with instruments such as skives, glass substrate being cut off the supporting construction that obtains.The shape approximation of the section of this supporting construction is in the shape shown in Fig. 3 A and the 3B, but section totally is drawn grain, so there are countless small crackles.
Bend test method is the traction compression test AGS-20KNG that adopts Shimadzu Corp to make, and compresses with the speed of 0.05mm/min size.The briquetting that test film is compressed uses glass blocks.And the length of the spacer that uses in the bend test is 40mm.
As shown in Table 1, supporting construction of the present invention with compare with the supporting construction of existing manufacture method manufacturing, bending strength exceeds nearly 1.5 times, anti-breakdown strength excellence.
Table 1
Figure C200510089584D00121
(embodiment 2)
Except laser power was 5.2W, other were identical with embodiment 1, and glass substrate is cut off.Its result, cut-out portion shown in Fig. 2 A and 2B, R T2Be the back-flexing shape.
(embodiment 3)
Except laser power was 8.6W, other were identical with embodiment 1, and glass substrate is cut off.Its result, cut-out portion is shaped as: for thickness 0.195mm, R T4Radius of curvature be 0.22mm, be bigger curved shape.
[effect of invention]
Supporting construction of the present invention has groove owing on the surface, thus can control charging property, and, This groove does not arrive the end, so relaxed by the concavo-convex stress that causes of this groove is concentrated, compression is strong Degree and bending strength excellence.
In addition, supporting construction of the present invention has groove owing on the surface, thus can control charging property, And the end has its radius of curvature bend bigger than the thickness of this supporting construction, so should Bend has the effect as the reinforcing member of supporting construction, and compressive strength and bending strength are excellent Different.
In addition, if adopt manufacture method of the present invention, then do not increase complicated operation, with regard to energy Manufacturing has the supporting construction of the groove of desirable shape.
In display unit of the present invention, owing to use supporting construction of the present invention, so can be very Control well the charged of supporting construction that the electronics launched causes, and, this supporting construction this The intensity of body is so can obtain very high reliability in high-quality demonstration.
Therefore, if adopt the present invention, then can not cause the significantly rising of manufacturing cost, energy Provide than the supporting construction of excellent strength in the past. In addition, adopt this supporting construction, can provide high The high display unit of reliability when quality shows.

Claims (2)

1, a kind of display unit is characterized in that having: first substrate with electronic emission element; Have luminous component luminous and second substrate of electrode by shining from above-mentioned electronic emission element electrons emitted; And between above-mentioned first substrate and second substrate, support two substrates, and the tabular supporting construction that has a plurality of grooves parallel on the surface with above-mentioned first substrate or second substrate, on not the end of above-mentioned supporting construction, have the radius of curvature sweep bigger than the thickness of this supporting construction in the face of above-mentioned first substrate or second substrate.
2, a kind of supporting construction, on the surface of tabular basis material, have a plurality of grooves with the parallel longitudinal of this basis material, with the component parts of the end upper support display unit of this parallel longitudinal of this basis material, it is characterized in that: with the horizontal parallel end of above-mentioned basis material on, have the radius of curvature sweep bigger than the thickness of this basis material.
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US7704115B2 (en) 2010-04-27
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CN1747115A (en) 2006-03-15
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KR20060049271A (en) 2006-05-18

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